Maximiliano Firtman

WebMCP: Making Web Apps Faster and Cheaper for Coding Agents

When interacting with web apps, most coding agents still rely on screenshots, DOM scraping, selector guessing, and other fragile heuristics that consume too many tokens and often break at scale.

In this session, we’ll explore how WebMCP can improve that workflow by giving agents a more explicit way to understand and use web apps. Instead of reverse-engineering the interface or relying on screenshots, agents can discover actions and capabilities through a structured contract exposed by the page.

We’ll examine how this fits into today’s MCP ecosystem, including browser automation and debugging with tools such as Chrome DevTools MCP, and we’ll look at practical workflows for testing, QA, and automated documentation. We’ll also cover current limitations, security considerations, and what remains experimental in this emerging space.

This talk gives developers a realistic mental model for how coding agents interact with web apps today, what WebMCP changes, and how to start experimenting with more reliable and efficient agent-driven workflows.